Resolve "Fix mobile issues"

Closes #105 (closed)

src/main/resources/scss/_elements.scss

@@ -928,3 +928,14 @@
 [data-empty="true"] {
     margin-top: 1em;
 }
+
+.display\:mobile {
+    @media (min-width: 48.001rem) {
+        display: none;
+    }
+}
+.hide\:mobile {
+    @media (max-width: 48rem) {
+        display: none;
+    }
+}